ERDALKALIMETALLSILIKAT-LEUCHTSTOFFE UND VERFAHREN ZUR VERBESSERUNG IHRER LANGZEITSTABILITÄT
    7.
    发明公开
    ERDALKALIMETALLSILIKAT-LEUCHTSTOFFE UND VERFAHREN ZUR VERBESSERUNG IHRER LANGZEITSTABILITÄT 有权
    碱土金属-LIGHT物质和一种用于改善您的长期稳定性

    公开(公告)号:EP2396385A1

    公开(公告)日:2011-12-21

    申请号:EP10773598.7

    申请日:2010-10-14

    IPC分类号: C09K11/02 C09K11/77

    摘要: The present invention relates to alkaline earth metal silicate luminophores having improved long-term stability and to a corresponding method for improving the long-term stability of alkaline earth metal silicate luminophores. The luminophore according to the invention is a luminophore comprising a base lattice according to the general chemical formula EA
    x Si
    y O
    z , where x, y, z > 0. The component EA is formed by one or more alkaline earth metals. An activator, for example Eu
    2+ or Mn
    2+ , is doped into the base lattice. The luminophore has the fundamental property to absorb radiation in a first wavelength range and emit radiation in a second wavelength range that is different from the first wavelength range. The luminophore is designed in the form of crystals. According to the invention, the surfaces of the crystals of the luminophore are chemically modified such that at least portions of the surfaces thereof are formed by a chemical compound of the general formula Ea
    u Z
    2 . The component Z is formed by anions, which can be chemically combined with the EA cations of the luminophore. The variable u is equal to an ion charge of the anions Z. The chemical modification is therefore not a coating.

    LIGHT EMITTING DEVICE WITH A NON-ACTIVATED LUMINESCENT MATERIAL
    9.
    发明授权
    LIGHT EMITTING DEVICE WITH A NON-ACTIVATED LUMINESCENT MATERIAL 有权
    具有非活化发光材料的发光装置

    公开(公告)号:EP1989924B1

    公开(公告)日:2011-05-11

    申请号:EP07702619.3

    申请日:2007-01-08

    IPC分类号: H05B33/10 H05B33/12 H05B33/14

    摘要: The invention relates to a light emitting device (1) having a radiation emitting element, for example a light emitting diode (LED), and a luminescent material (3) which is able to absorb a part of the radiation sent out by the radiation emitting element and to send out light with a wavelength which is different from the wavelength of the absorbed radiation. The device further has diffusing particles (4) which are able to scatter a part of the radiation sent out by the radiation emitting element, and/or to scatter a part of the light sent out by the luminescent material (3). The diffusing particles (4) are of non-activated luminescent material, through which production is simplified.

    摘要翻译: 本发明涉及一种具有辐射发射元件(例如发光二极管(LED))和发光材料(3)的发光设备(1),所述发光材料能够吸收由发射辐射发出的辐射的一部分 并且发出具有不同于所吸收的辐射的波长的波长的光。 该装置还具有散射粒子(4),散射粒子(4)能够散射由辐射发射元件发出的一部分辐射,和/或散射由发光材料(3)发出的一部分光。 漫射粒子(4)是非活化的发光材料,通过它可以简化生产。